The 2nd Monitor

4:00 PM

this is the cooking pot for meta issues, and that shouldn't change..

so maybe the better question would be to define what "site business" is (as in, hard rule) and then say 10 minutes (less) of discussion should be moved

SuperBiasedMan

@Vogel612 No worries. I can imagine it's hard.

Vogel612

@ARedHerring site business: questions and discussion pertaining directly to: questions, answers, comments and behaviour on codereview.se and meta.codereview.se

Mast

I think the actual problem with conversations is whether they can be interrupted for site business or not.

Vogel612

@Mast correct. here that wasn't the case.

Mast

4:02 PM

Every once in a while we're all joking around since there's no site business anyway. That's usually not a problem, since we can halt it instantly.

Vogel612

but I only realized that when I went trough to move stuff..

EBrown

@rolfl How did you do yours? If you don't mind my asking.

@SuperBiasedMan It happens. He accidentally got a couple of mine (that aren't TDD related) as well. ;) @Vogel612 can't be perfect. :)

rolfl

@EBrown "Simple" really ...... I defined a window in to the set, with a center point, and a zoom level. A zoom level of 1 is defiend to cover the whole set from -2.5->1.0 and -1.0->1.0

A Red Herring

@Vogel612 is perfect enough for me. (ಥ﹏ಥ)

EBrown

@rolfl I meant the actual algorithm. :P

rolfl

4:10 PM

So, with that, I can "just"..... map that on to a 2D integer array, where the array lists the number of actual iterations computed as follows:

    public static final int[][] mandelbrot(final int pixWidth, final int pixHeight, final int limit, final Window window) {

        final double mandWidth = 3.5 / window.getZoom();
        final double mandHeight = 2.0 / window.getZoom();
        final double xStep = mandWidth / pixWidth;
        final double yStep = mandHeight / pixHeight;

        if (xStep < MINSTEP || yStep < MINSTEP) {
            return overZoom(pixWidth, pixHeight, limit);
        }

        final double left = window.getCenterX() - mandWidth / 2.0;

EBrown

I wonder if my use of Point and PointF is slow.

skiwi

@rolfl Interesting Java 8 usage

EBrown

Oh holy f

Yeah, Point and PointF are sloww.

Got mine down to 695ms.

For that 4096x2048 image.

Or did I?

Nope, 1935ms still. I'm so confused now.

rolfl

What I really like is my use of colors for the graphic..... here's how I assign the colors to each limit:

public static final int[] buildColors(final int limit) {
    final float root = (float)Math.sqrt(limit);
    return IntStream.rangeClosed(0, limit)
            .map(c -> limit - c)
            .mapToObj(c -> Color.getHSBColor((c % root) / root, 1.0f, (c / root) / root))
            .mapToInt(c -> c.getRGB())
            .toArray();
}

In essence, I spiral out from the center of the Hue wheel, with black representint the "limit".....

EBrown

LOL So using xSquared + ySquared < twoSquared is actually faster than using xSquared + ySquared < 4.0.

skiwi

4:15 PM

@EBrown Huh?

EBrown

@skiwi Yeah, that's what I thought.

rolfl

@EBrown what is twoSquared ?

EBrown

@rolfl A float, which might be why it's faster.

rolfl

exactly

declare the 4.0 as 4.0f

EBrown

Yeah.

Yeah, same speed as with twoSquared.

I'm surprised your Java implementation is that much faster than mine.

rolfl

4:19 PM

Why ... ? ;-)

EBrown

It just seems wrong. Lol

rolfl

I am running on an 8-core Core-i7.

EBrown

Ah, I'm on a hex-core Phenom II x6.

rolfl

> Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz

EBrown

You should run mine on your rig and see how it benches. ;)

rolfl

4:20 PM

> Linux solarium 3.13.0-63-generic #103-Ubuntu SMP Fri Aug 14 21:42:59 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

EBrown

I currently have to shift my brot to the right.

@rolfl :(

Martin R

@rolfl I saw EBrown's Mandelbrot question for C#. Is your Java code also publicly available?

skiwi

Remember though that @rolfl is an expert in optimization ;)

EBrown

@skiwi That is true as well.

rolfl

@MartinR Putting it up in a question soon.

EBrown

4:21 PM

Though my code should actually be faster than his.

Because I don't calculate x * x and y * y twice.

rolfl

I am using double throughout....

EBrown

@rolfl I can use double if it makes you feel better? :P

Using double now, 1898ms.

rolfl

What I'm saying is that maybe you have some implicit casts somewhere, or other type conversion problems...

EBrown

@rolfl No, I think it's because I only have 6 cores at 2.8Ghz.

rolfl

Technically I have 4 cores, with 8 threads

EBrown

4:24 PM

Mine often feels like 2 cores and n threads.

Oh man so close.

I need a faster way to save images.

Duga

@Amrita Look, this is a community where users can ask constructive questions and help other fellow programmers around the world. And not argue on whether to answer a poor question or not. Your program was based on a single logic and purely logical plus not helpful to other users. That's why it was considered poor quality. I don't mind answering any type of questions. These questions must be asked on codereview.stackexchange.com and not on SO. If you are still having more algorithmic kind of doubts, I can give you my email. I'll be more than happy to solve it. — Mr. Robot 42 secs ago

EBrown

Up to 2100ms.

But, that's with a properly centred image.

Duga

@Mr.Robot This question isn't actually on topic for Code Review since it's not working. CR is only for code working as intended. — SuperBiasedMan just now

EBrown

Weird. Going from 256 chunks to 16 chunks increased speed.

Zak

Alright, time for a full test run of my accounts-filtering macro. First month's printout should be done in 10 minutes or so.

Vogel612

4:39 PM

@EBrown less context switches and a better caching for the cpu I'd randomly guess

EBrown

@Vogel612 Yeah, I'm not certain why but it looks like the optimal number of chunks is numberOfCores * 2.

On my 6-core rig 12 has been the fastest routinely.

Hosch250

@EBrown Looks fine.

EBrown

@Hosch250 I've a lot to add to that yet, though.

A few more examples/scenarios I want to cover.

Zak

IT WORKS!

Duga

Also this question might be better placed at [SE Code Review] ( — πάντα ῥεῖ 31 secs ago

Zak

4:55 PM

Alright. 2.16 Million files to filter. Time to leave this running overnight and see if ti crashes or not :)

EBrown

Wow, I'm surprised how much attention my repetitive console prompt got.

The title must really be the kicker there. ;)

Zak

@EBrown It is a brilliant title :)

rolfl

5:18 PM

@MartinR See: Mandelbrot Streams

skiwi

@rolfl Javadoc!

rolfl

Is that a good JavaDoc or a bad JavaDoc?

Captain Obvious

1

Q: Mandlebrot Streams

A recent Mandelbrot question (Hi @EBrown) in C# inspired me to build my own using the Java 8 parallel streams to implement the parallelism that's useful for computing each pixel value. The intention is to incorporate this in to a graphical interface that allows you to navigate and zoom in on the...

Vogel612

lol.. monkey typo spotted

skiwi

That's good

Is it correct that every pixel in the Mandelbrot image can be calculated by itself?

If so, then I wonder if on the GPU it makes more sense to calculate this in a Fragment Shader or in a Compute Shader via CUDA or similar OpenCL

rolfl

5:33 PM

Technically, the center of each pixel is mapped to a specific point in the cartesian space......

if that center point is determined to be in the mandelbrot set, then the whole pixel is "in".

To compute whether it is in the set the common way is to iterate through the computations to determine whether it is bound, or not.

If it escapes the bounds, then it is not in the set, and you record how many iterations it took to escape.

The color in the image relates to how many iterations it took to escape.... black is "it did not escape".

skiwi

The pseudocode en.wikipedia.org/wiki/Mandelbrot_set#Escape_time_algorithm there doesn't seem to indicate that, but I may be reading it wrong

rolfl

> A repeating calculation is performed for each x, y point in the plot area and based on the behavior of that calculation, a color is chosen for that pixel.

For each pixel (Px, Py) on the screen, do:

skiwi

So the color picking is the hard thing to multithread?

rolfl

Well, no... the hard part is that for coordinates in the set you may have to run the computation a "limit" number of times (we are using 1000).....

A coordinate that escapes quickly will be fast.

skiwi

Okay, so length of computation depends on number of iterations

rolfl

5:39 PM

And also the number of pixels.....

A detailed image will require a lot more computations.

skiwi

But does it pose problems for multithreading?

Say you have N threads, if you make sure they are always busy calculating a pixel, then it will kinda balance out

rolfl

I parallelized it on a row-by-row basis... each row is delegated to a thread.

skiwi

But say, I go down the GPU route, then compute shaders with some memory fences that only release after all pixels have been calculated would probably make most sense

I should probably do it in C++, but the Java is strong in this one

Most computation will be in OpenCL language anyway

Mast

hardwarerecs.SE just hit private beta, we'll see how long it survives

rolfl

@skiwi You can parallelize the computation in many, many ways. Each pixel is essentially independent.

A GPU seems like a good call. An issue is that for "real" mandelbrot generators you often have to go to coordinates that can't be expressed in the precision of double.

Hosch250

5:54 PM

You could build an array of pixel points, then use n threads to do the calculation.

skiwi

@rolfl Pretty small it seems?

rolfl

Deepest Mandelbrot Set Zoom Animation ever - a New Record! 10^275 (2.1E275 or 2^915)

►

skiwi

@rolfl That's... quite deep

I wish I had an Oculus Rift

Or maybe I wish I wouldn't

rolfl

That's what she.... nevermind.

4

skiwi

@rolfl I had to think about it, but can't understand if that's positive or negative

rolfl

6:01 PM

+ve

skiwi

+ve?

Jeroen Vannevel

Apple TV selling point: screensavers

skiwi

It sounded more like a surprise... and that would be rather odd

What the... happened at 2:20

Mandelbrot took LSD?

@rolfl That's very impressive ;)

Yes, I watched all of it

EBrown

I need 80 rep to mortarboard...I can do this!

skiwi

I read that as "I need 80 rep to mandelbrot...I can do this!"

EBrown

6:07 PM

@skiwi That too.

skiwi

I know what I'll be dreaming about tonight.

EBrown

@skiwi I hope it's not Mandelbrot's.

@rolfl So high...

Captain Obvious

0

Q: Listens for OP_RETURN messages (metadata) on the Bitcoin blockchain

The application listens for OP_RETURN messages on the Bitcoin blockchain and prints them to standard output. OP_RETURN is a custom transaction locking script that can store data, but nothing beyond that. It's generally used for storing small amounts of metadata in the blockchain. I would like som...

java bitcoin

skiwi

I wonder what it looks like watching that video on drugs

EBrown

I'm actually quite curious now.

Jeroen Vannevel

6:10 PM

90% of everything I've seen so far on the apple conf can be categorized under "fancy UI"

rolfl

Is that all?

EBrown

@JeroenVannevel 90% of everything from Apple can be categorized under "fancy UI"

Jeroen Vannevel

Well you could skip ahead 7 minutes by talking to siri, so I'm giving them a few points for that

skiwi

@EBrown 100% of 90% of everything from Apple can be categorized under "fancy UI"

Jeroen Vannevel

This is the most boring presentation ever

rolfl

6:11 PM

Apple is great, they claim to revolutionaize things by having just one button, but then add more... ;-) Still, people think their interfaces have 1 button.

Instead, they now have 4 hard-to-use buttons, and one easy one.

EBrown

@rolfl The owner of the company I work for alleges his car only has 4 buttons.

But it doesn't, it has plenty more.

(I've seen inside it.)

Also, @rolfl, did you read the description on that video?

> Each frame was individually rendered at 640x480 resolution and strung together at 30 frames per second. No frame interpolation was used. All images were lovingly rendered by 12 CPU cores running 24/7 for 6 months.

skiwi

6... months?

EBrown

That's dedication.

rolfl

Yes, that is interesting.... in a few weeks I will have access to >4000 cores and I need a distributed computational test to ensure they are all busy.......

EBrown

I would have given up after about 20 minutes.

@rolfl LOL

skiwi

6:14 PM

@rolfl "test"

rolfl

I lie, actually, I will have access to >4000 hosts, and they each have 16 or 32 cores depending.

3

EBrown

@rolfl Even better.

I need to get zooming working on my Mandelbrot generator.

Somehow, it does not work properly.

Dan Lyons

@rolfl think of all the bitcoins

rolfl

ASIC will still win.

EBrown

@rolfl ASIC?

rolfl

6:16 PM

Application-specific integrated circuit

An application-specific integrated circuit (ASIC) /ˈeɪsɪk/, is an integrated circuit (IC) customized for a particular use, rather than intended for general-purpose use. For example, a chip designed to run in a digital voice recorder or a high-efficiency Bitcoin miner is an ASIC. Application-specific standard products (ASSPs) are intermediate between ASICs and industry standard integrated circuits like the 7400 or the 4000 series. As feature sizes have shrunk and design tools improved over the years, the maximum complexity (and hence functionality) possible in an ASIC has grown from 5,000 gates...

skiwi

Are there Mandelbrot ASICs?

EBrown

@rolfl Ah.

This is such a hard thing...not sure why but my Mandelbrot will not scale correctly.

Mast

@rolfl burn them all and put them in FPGA

rolfl

Math.... can be a pain.

EBrown

@rolfl Yes.

Especially when I'm working with double values that are wrong.

Mast

6:21 PM

markbowers.org/fpga-mandelbrot

EBrown

@Mast ?!?!?

Caridorc

StackExchange warned me, my bounty on codereview.stackexchange.com/questions/96324/… ends in 3 days. Any answer is welcome.

Captain Obvious

-1

Q: how can i redude this multi-loops

function [x A b w]=lgm1(T,N) syms t; v=leg(T,N)+leg(T,N+1); x=solve(v==0,t); x=double(x); x=real(x); x=sort(x); %w=sort(w); z=(2./T.*x)-1; w=zeros(N+1,1); %weights of L-G-R collocation method w(1)=2/(N+1)^2; % for j=2:N+1 k=leg1(T,N); h=subs(k,t,z); w(2:N+1)=((1-z(2:N+1))./((N+1)^2.*h(2:N+1).^2)...

matlab

rolfl

redude dude.

EBrown

@Caridorc "Stack Exchange" ;)

I need someone to help me with maths. D:

skiwi

6:35 PM

That function seems very maintainable

EBrown

Also, @Caridorc, if it weren't Ruby I would help you.

Malachi

6:53 PM

off topic??? ▼▼▼

0

Q: Is there any reason to generate all of a text file first and write it all at once in a single function

I've found a method that creates a text file that looks like: GenerateAndWriteFile(/*params*/) { List<string> linesToWrite = new List<string>(); TextWriter outputFile = new StreamWriter(filename, false); // a bunch of lines like this linesToWrite.Add("stuff"); //... fo...

c# file

Caridorc

@EBrown, tell me

Mast

@Caridorc Ruby, can't help you with that.

@Malachi Yes.

Caridorc

@Mast, you mean with the cipher?

Malachi

@Mast I already VTC'd

your turn

Mast

Already did.

2 more, example code.

EBrown

6:56 PM

@Caridorc I don't know Ruby man, so I can't really say much on it.

Vogel612

@Caridorc shouldn't that be Poly-Alphabetic?

Caridorc

@Vogel612 yup, I forgot that nothing end in i in English :)

Captain Obvious

0

Q: Is there any reason to generate all of a text file first and write it all at once in a single function

I've found a method that creates a text file that looks like: GenerateAndWriteFile(/*params*/) { List<string> linesToWrite = new List<string>(); TextWriter outputFile = new StreamWriter(filename, false); // a bunch of lines like this linesToWrite.Add("stuff"); //... fo...

c# file

Vogel612

actually... that comes from latin..

@CaptainObvious somebody drop a comment on that one, please

Caridorc

@Vogel612 Greek: dictionary.reference.com/browse/poly-

Vogel612

7:00 PM

nvm me. I should've known...

Caridorc

@Vogel612 do not worry I hate dead languages

Vogel612

I actually could have studied greek in High School...

EBrown

> You've earned the "Popular Question" badge (Question with 1,000 views) for "A completely repetitive console prompt, a completely repetitive console prompt".

Vogel612

alas I went for french. was easier with already having been confronted with latin

Caridorc

@Vogel612 I have been forced to study latin 3 years and will have to study it for 2 more years...

You are lucky, French is oh so easy

Vogel612

7:03 PM

@Caridorc enjoy it. French is only oh so easy after latin

and the orthography in french is a royal PITA:

Caridorc

@Vogel612 or after any latin language

Vogel612

two [dö] deux...

Caridorc

such as Italian my language. Latin makes nothing easier for me

Vogel612

yea I had a short episode with Dante's Commedia Divina in original middle italian or whatever the crap that was..

Caridorc

I used to know the first 100 verses by heart of Dante's Commedia. I forgot a good part of them

Vogel612

7:06 PM

after that we read the Nibelungenlied in middle high German

Captain Obvious

0

Q: Sum diagonals in 2D array

I'm trying the sum the primary diagonal and the secondary diagonal of a matrix, and saving all the results in an acumulator, but my code breaks at the secondary matrix, could you help me please? Here is my code #include<bits/stdc++.h> using namespace std; int main() { int y=0, x=0, acum=0; cin>>y

c++

StackOverflow

3

Q: How to parse comments in a GIT commit?

I am following a simplified code review process for GIT commits where developers add message in GITHUB web UI saying @review pending by @user_a, @user_b ( user_a and user_b are valid GIT users ) for direct GIT COMMITs. Later reviewer adds another message in GITHUB web UI saying @reviewed by @re...

git github code-review

EBrown

Wewt!

Finally got my Mandelbrot utility to support specific regions.

(It's way crisper as a png, but SE chat makes it a jpg.)

Caridorc

@Ebrown given the fractal frenzy of the last days, this should really be a community challange

EBrown

@Caridorc I might propose it for October. ;)

Caridorc

7:17 PM

@EBrown excellent idea, you have my upvote

EBrown

Wait, how often/when do we do Community Challenges?

Caridorc

@EBrown one per month

EBrown

I don't see October 2015 up yet.

Vogel612

#goforit

Zak

@EBrown Technically, it's only convention that there's a new one once per month

Vogel612

7:20 PM

Technically you shouldn't call a 7 months thing in the third retry convention...

EBrown

So does that mean Community Challenges have died out?

Vogel612

twice already...

this is the third attempt..

go make an October post.

EBrown

Alright, I'll do just that.

0

Q: October 2015 Community Challenge

I don't see one of these yet, so here's the question for the proposals for the October 2015 Community Challenge! It's time to choose a community-challenge for October 2015. Post your challenge as an answer to this question. Feel free to resubmit non-winning ideas from previous months. Vote f...

discussion fun community-challenge

Martin R

@EBrown What math problem do you have?

EBrown

@MartinR Ah, I fixed it already.

For some reason I couldn't recentre my Mandelbrot set.

Gah, I'm not sure what answer to accept on one of my questions. They are all so good! :(

Martin R

7:28 PM

OK. (Unfortunately I was not able to run your code. I have "only" a Mac and did not manage to make it compile and run with Mono.)

Caridorc

Haskell in Geany with inverted colors is pretty cool. Glowing Yellow Types on black background

EBrown

@MartinR Ah, yeah, it requires System.Drawing at the moment.

And System.Drawing.Imaging.

But, I might be able to fix that soon @MartinR. :) Maybe I can make it Mono compatible.

Vogel612

@Caridorc you may want to delete that message...

Caridorc

@Vogel612 done, sorry for chat pollution :)

Vogel612

it's more about the other one, you know?

the one where we can see your name and OS preference...

Caridorc

7:32 PM

facepalm

EBrown

@Vogel612 As curious as that is, it now shows that his name Caridorc is an anagram for riccardo.

Caridorc

is a bit old to delete now.

flagged

anyhow, my name is not a big secret

@EBrown it was chosen on purpose

And Tergilti

EBrown

Well, 75 rep to mortarboard.

Caridorc

is an almost an acronym of my surname

one i too few

@EBrown I think rep is lowered only if the mod choses to do so

EBrown

@Caridorc No, I mean I need 75 rep to cap for the day.

Stack Exchange

7:36 PM

2

Q: October 2015 Community Challenge

I don't see one of these yet, so here's the question for the proposals for the October 2015 Community Challenge! It's time to choose a community-challenge for October 2015. Post your challenge as an answer to this question. Feel free to resubmit non-winning ideas from previous months. Vote f...

discussion fun community-challenge

Caridorc

@EBrown ah fiuh, I though flagging a post of mine costed 75 rep

EBrown

@Caridorc No, it can cause an auto-mute though (depending on how many flags it gets and how the mod responds to it).

Caridorc

@EBrown no problem, life is risky

Zak

I think it's -100 rep for spam-flag validation?

Caridorc

Anywhow I learned that drag-and-drop with images does not work directly on this chat. There is an upload button to use

EBrown

7:44 PM

Woah

Thanks Santa! :)

I was writing an answer and all-of-a-sudden +55 rep.

TopinFrassi

@Caridorc French is actually considered a difficult language to learn

EBrown

Oh man, I can totally get another +10 before the day is up!

Caridorc

@TopinFrassi for Englishmen. For Italians and Spanish people it is a breeze

TopinFrassi

@Caridorc True, because italian/spanish and french have a very similar synthax. I'm natively french and learning spanish was a breeze (Though I forgot it all)

Caridorc

@TopinFrassi ^^ that

EBrown

7:48 PM

Thanks again, Santa! :)

2

Time for me to go do my voting on CR as well.

Caridorc

@EBrown did you already rep cap?

EBrown

@Caridorc Yeah, just hit it.

(Or so my rep thing says.)

Caridorc

@EBrown Congrats!

EBrown

@Caridorc Well, to be fair, someone did just spam a bunch of upvotes on my stuff. :P

Caridorc

@EBrown I read everything I upvoted on, and they were all good questions/answers, the upvotes were deserved IMO

EBrown

7:52 PM

I've always wanted to [badge:mortarboard] at least once.

I could never do it on SO.

Caridorc

Like that 33% speed increase by just using bool in the sieve

would you not have upvoted that?

EBrown

@Caridorc That one caused a lot more memory to be used, though.

Caridorc

@EBrown but there are always compromises between speed and size

EBrown

@Caridorc Indeed. Though it did break one particular case of the question.

But the OP liked it, so I suppose it's fine?

Caridorc

and with the massive RAM avaible today, using a bit more of it for such a speed-up is a win

Ismael Miguel

7:54 PM

Greetings

EBrown

Well the problem is that you cannot use .ToList with it because .NET limits the maximum size of an object to 2GB.

Now, I just need to find some things to vote on and share the love/rep.

Mast

@EBrown You can't split it up?

EBrown

@Mast You could, I suppose.

Which would solve the issue, but add undue complexity.

Either way, the OP found use for it all.

You can tell I rep-capped from that red box.

(Which I drew myself, thank you very much.)

TopinFrassi

@EBrown What a magnificent red box

EBrown

@TopinFrassi Thank you. :)

@Mast There are of course, alternatives.

Duga

8:00 PM

possible answer invalidation: codereview.stackexchange.com/questions/104050/…

EBrown

@Duga @SimonForsberg go @Duga!

That one's no false-alarm.

> You've earned the "Mortarboard" badge (Earn at least 200 reputation (the daily maximum) in a single day).

Mast

Nice comment from @SimonForsberg, we should have something like that on the Frequent Comment thread

EBrown

@Mast Indeed, he should add it in there.

Now that we know @Duga can report these issues.

Mast

The current one is shallower.

9

A: Frequently Posted Comments

OP has edited their question to include feedback received in answers, effectively invalidating existing answers. Adapted from the famous meta post, "For an iterative review, is it okay to edit my own question to include revised code?": I have rolled back the last edit. Please see *[What to d...

I could of-course just add it as a third choice.

Simon Forsberg

I'll add it

Mast

8:05 PM

@janos You kicked me out, FYI

Caridorc

I got an existential problem with currying in Haskell

some people say it is "idiomatic"

and I like how short some programs can become

but spelling arguments in full really looks more readable

EBrown

What was the MathJax for O(n^2)?

I can't recall the syntax off the top of my head.

Caridorc

@EBrown maybe the easy $$O(n^2)$$ ?

EBrown

@Caridorc But that doesn't inline it.

Caridorc

@EBrown well, I tried, MathJax is nice looking but pretty complex

Captain Obvious

8:10 PM

0

Q: Calculate the area of rectangles union

I've been given the following task: Given N rectangles with edges parallel to axis, calculate the area of the union of all rectangles. The input and output are files specified in program arguments. Input is represented by N lines with 4 numbers separated by spaces, defining 2 opposite vertices of...

java performance algorithm

Ethan Bierlein

Afternoon

EBrown

Also, this question on PPCG caught my eye, specifically the C89/C99 answer.

Any C users may be particularly interested in it.

Ismael Miguel

@EBrown I wrote a PHP/ES6 answer

@EthanBierlein Greetings

Duga

You should try to ask one question at a time. If you want to improve working code you might want to have a look at codereview.stackexchange.com — Marged 9 secs ago

@Marged Question is asking "but I honestly have no idea how to make the image change by clicking an option." and "Help with making unlockable content would be appreciated as well" which are feature requests. This would be off-topic for Code Review because of that. — Simon Forsberg 7 secs ago

Simon Forsberg

8:25 PM

Hi and welcome to Stack Overflow! Stack Overflow is about solving specific problems with code - it's not really a place to get suggestions and recommendations. Your post seems to be centered around one concrete question - how to get the image to change when an option is clicked - so I would recommend editing your question to remove some of the cruft and clarifying and focusing on that one specific issue. The more focused your question is, the more focused the answers will be. Thanks! — Maximillian Laumeister 4 mins ago

thankfully someone read the question ^^

Captain Obvious

1

Q: MonoAlphabetic and PolyAlphabetic ciphers in Haskell

This code defines functions to cipher text with both mono-alphetic (Caesar) ciphers and poly-alphabetic ciphers. I also define a shortcut for rot13. I like this code and I think it is easy to read, but code is never perfect so I ask you for improvements. import Data.Char (toLower) alphabet :: S...

haskell functional-programming caesar-cipher

Caridorc

bye

Simon Forsberg

8:40 PM

@EBrown Community Challenges never die out, they just take a break every now and then. Personally there are many challenges already that I would like to implement but I just can't keep up with them.

Duga

I added the part to find if the activity is opened from launcher as well :) @EricS.: mind a pseudo-code review ? — divyenduz 54 secs ago

RoboSanta

9:00 PM

0

A: Excel Laboratory Data Entry from Python 2.7

Do not bare except try: z_seven = xsheet1.Range('b1:b1000').FindNext(z_six) except: pass Should be avoided as any kind of error will be expected, instead use: try: z_seven = xsheet1.Range('b1:b1000').FindNext(z_six) except TheExceptioIExpect: pass Remove the massive code dupli...

EBrown

@SimonForsberg I think they are a nice touch.

Anyway, TTGH methinks.

Hosch250

When they are busy taking a rest, I think I'll quietly post one toward the end of the month, post an answer, spam it here, and accept it ;P

Simon Forsberg

@EBrown they are indeed a nice touch, as long as there's enough interest in them. People need to participate. I was a bit disappointed that I was the only one that implemented the Election challenge.

Hosch250

I started the election one, and so did @rolfl.

I just never finished it. I'll have to do that sometime, and post it.

Captain Obvious

0

Q: Data discrepancy between networkx and igraph graph creation

I'm trying to determine the performance of graph analysis. However, during the graph creation I notice some of the data discrepancy in the two libraries. But I'm not sure if I'm missing anything in the code. I have a database of all the twitter users with followees. Here's the example of data i...

python graph machine-learning

0

Q: Winsock GET && POST Functions

Works fine so far but I am looking for some advise as to how to better write this. My goal is to learn and incorporate current/latest C++ practices and become a better programmer overall. #include "HTTPRequest.h" /* This function initalized Winsock */ bool HTTPRequest::InitWinsock() { ...

c++ c socket

Phrancis

9:13 PM

I was in a meeting today and saw that someone had scribbled a FizzBuzz on the board...

7

Ethan Bierlein

lol

Hey @Phrancis, I'm working on a new version of the decorator. It should be around in a little bit.

Phrancis

Sweet

I installed PyMongo on my PC, hoping to play around with it tonight

Ethan Bierlein

I just have to figure out why Python thinks it's calling an int object in the first place.

It'll have a new feature too.

It will display the local variables contained inside a function.

But not their values.

Mast

@EthanBierlein Implicit casting somewhere?

Ethan Bierlein

No, I don't think so.

I'm not sure Python would even do that anyways.

Simon Forsberg

9:16 PM

@Phrancis s/someone/you/ ?

Phrancis

@SimonForsberg I plead innocent!

Ethan Bierlein

grr

~~Stupid Python.~~ Sometimes annoying Python.

The decorator works when applied to normal functions, but it just decides to fail on class methods.

Hmm, nvm.

I must have made my class wrong.

Isn't debugging fun?

2

Captain Obvious

1

Q: DSL design -- C DSL

I am trying to design a DSL for writing C. Here is my code as a github gist (Github does not allow me to have slashes in the filenames so I have used underscores instead): https://gist.github.com/charles-cooper/379d1702df2051b9c60c It depends on packages free and process. My goal is to make the...

haskell monads dsl

Hosch250

@EthanBierlein It is. Especially when things just don't run.

My latest was forgetting an attribute, so something wasn't running in a certain use case that I was trying to add to the feature set.

Ethan Bierlein

Lol.

I figured out why my tests were raising an error.

Turns out one of the test methods had the same name as an attribute.

Which makes me wonder...

Does a language like C# know the difference between an attribute and a method?

Like if I had an attribute a, and a method a, would it be able to distinguish between the two?

Ethan Bierlein

9:45 PM

0

Q: Function and method debugging decorator - Part 2

This is a follow-up to this question. I've refactored my previous debugging decorator, and added a couple new features, and changed a few things. Here's a complete list of things that have changed: There is only one decorator, Debug, and it now supports functions, and class methods. Each...

python python3 python-2.7

@Phrancis ^^

Oh, and I've now put it into a Github repo:

github.com/ShearOfDoom/Debug/tree/master

Captain Obvious

1

Q: Function and method debugging decorator - Part 2

This is a follow-up to this question. I've refactored my previous debugging decorator, and added a couple new features, and changed a few things. Here's a complete list of things that have changed: There is only one decorator, Debug, and it now supports functions, and class methods. Each...

python python3 python-2.7

Ethan Bierlein

Captain, you've gotten a little slower than snail warp speed.

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